Furnace wall and baffle



July 22, 1930. o. s. JACOBUS 1,770,928

FURNACE WALL AND BAFF'LE Original Filed Nov. 27, 1925 Fig 1. F1 2. Fig;

5 a a I 17 a I \k 1&- "T Q I i 10 I mv: Baa-nil NTO i Y YLJ'I V424 ATTORNEY Patented July 22, 1930 UNITED STATES PATENT; OFFICE DAVID S. JACOBUS, OF MONTCLAIR, NEW JERSEY, ASSIGNOR TO THE BABCOCK & WIL- GOX COMPANY, OI BAYONNE, NEW JERSEY,*& CORPORATION OF NEW JERSEY rumuon WALL AND RAFFLE Original application filed November 27, 1925, Serial No. 71,517. Divided and this application filed May 7,1929. Serial m. 381,154.

This is a division of my copending application Serial No. 71,517, filed Novem or 27, 1925.

This invention relates to tile for makin bafiles es ecially useful in connection with water tu boilers, and will be understood from the descri tion in connection with the accompanying rawings, in which Fig. 1 is a side elevation illustrating an embodiment of theinvention; Fig. 2 is a section along the line 22 of Fig. 1; Fig. 3 is a section taken on the line 3-3 of Fig. 1; Fig. 4: is a view, similar to Fig. 3, of a modification; Fig. 5 is a section along the line 5-5 of Fig. 4; Fig. 6 1s a section through a boiler on a small scale, show-- ing how the baflies may be located. I

In the drawings,.reference character 10indicates water tubes of a water tube boiler between which the tile may be installed for the purpose of providing a baflle for the hotgases. A tile made in accordance with my invention is illustrated at 11, and consists of a block having 0 posite sides parallel, and its front and rear aces in the shape of a non-rectangular parallelogram. Its ends are hollowed out or made concave, so that they will fit the outside surfaces of the tubes 10 between which they are installed, it being observed that these opposite ends are offset with respect to each other in a direction longitudinal of the tubes. In installing the same, as shown in Fig. 1 the bottom tile 11 is'made with a surface th the header 15, and eac one of the successive tiles is installed thereabove by introducing the same while held in a vertical position between the tubes, and then turning the same anticlockwise, as seen in Fig. 1, until the rounded ends come into contact with the tubes, after which it is permitted to slide downwardlyinto contact with a lower tile, and the tubes, hold the same in place. One of the rounded end portions of the bottom tile 11' is curved at 11" to enable it to be turned into place. The angle ofslope of the 'top and bottom edge surfaces of the tile 11 with respect to the rounded ends thereof is such that the point 12, where the top edge of one of the rounded ends contacts with one of the tubes, and the point 13 where the lower at will ada t it to fit flat against edge of the other rounded end contacts with the other tube, will be substantially'horizontal so that the point 12 will serve as a pivot around which the tile 11 can be swung upwardly to remove the same. The tile when in place between the tubes fits the tubes closely from top to bottom on each side.

When the usual form of tile with horizon tal joints is used, it is impossible to form the tile so that they will fit in the desired manner against the tubes from top to bottom, because after turning the tile into place there will be a line contact instead of a contact of a considerable portion of the entire surface at each side of the tile. It can therefore beseen that by making the joints which come at'the top and bottom of the tile at an angle with the horizontal atile may be used which will contactwith the tubes from top to bottom, and

thereby provide a much better thermal contact with the tubes and a tighter joint to prevent gas leakage than can be obtained with a tile having horizontal joints. It will thus be seen that the tile can be readily installed and removed, and will be securely retained in position by thetubes 10 when they are in place to form with the tubes a baflie. It will be understood that other tile will be similarly installed in the s aces between rows oftubes to' 1 form a bafile o the'desired-width, and a suflicient number of tile will be installed to make the bafile the desired length.

In the modification shown in Figs. 4 and 5, the middle portion of the tile 16 is made narrower, thus making the tile less bulky whilestill retaining the advantages of ease of installation and removal, and security of position when installed. In this modification, tile are shown with grooves 17 along their top consuch tubes to provide baflies which will cause the gases to be deflected, as indicated by the arrows in this figure.

I claim l. A wall member adapted to be placed between fixed cylindrical surfaces, having one of its sides rounded to fit one of said surfaces and having its opposite side rounded to fit another of said surfaces, and having two of its other sides parallel to each other and making angles other than right angles with its rounded sides and perpendicular to a common plane.

2. A wall member adapted to be placed between fixed cylindrical surfaces, having one of its sides rounded to fit one of said surfaces and having its opposite side rounded to fit another of said surfaces, and having two of its other sides forming acute angles with its rounded sides and parallel with each other, and also having the remaining sides parallel with each other.

3. A bafile comprising two adjacent tubes substantially parallel to each other and a plurality of blocks disposed between said tubes,

.each block having oppositely disposed cylindrical surfaces adapted to engage said tubes, and oppositely disposed faces extending between the cylindrical surfaces and forming part of the opposite faces of the bafile, each of said faces being substantially in the form of a non-rectangular. parallelogram.

4. A bafile comprising two adjacent tubes substantially parallel to each other and a plurality of blocks disposed between said tubes, each block having oppositely disposed cylindrical surfaces adapted to engage said tubes, one of said surfaces being offset longitudinally of the tubes with respect to the other.

5. A bafile comprising two adjacent tubes substantially parallel to each other and a plurality of blocks disposed between said tubes, each block having oppositely disposed cylindrical surfaces adapted to engage said tubes, and two substantially parallel edge surfaces extending between said cylindrical surfaces and adapted to contact with corresponding edge surfaces on adjacent blocks in the baffle, each of said two edge surfaces forming acute angles with the axes of said tubes.

DAVID S. JACOBUS. 

